Device for contracting piston-rings.



' H. J. WAL'IVON & C.*M. NRBER.

DEVICE FOR CONTRACTING PISTON'RINGS-I APPL1oAT1-0N FILED @11.17, 1914.

1,103,717, f vacentedJuly'llQm.

- ton rings of different diameters.

UNITED sri-Aras Parana ernten. l

HOWARD J.,WA.TON AND CECIL M. NERBER, 0F TITUSVILLE, PENNSYLVANIA.

DEVICE FOB, CONTRACTING PISTONRINGS.

To all whom it mayfconcern Be it known that we, HOWARD J. VVAnToN and CECIL M. NERnn, citizens of the United States, 'residing at Titusville, in the county of Crawford and State of Pennsylvania,

have invented certain new and useful Improvements in Devices for Contracting Piston-Rings, of which the following is a specification.

This invention relates to devicesfor compressing or'cont-racting piston rings while in place on' the piston, so that the whole may be readily slipped into the cylinder,and its object is to provide a simple and efficient device of this kind which is adjustable to pis- This ob- -ject is attained by vmeans of a novel combination and arrangement of parts to be hereinafter described and claimed, reference being had to the accompanying drawing, in which- I'gure 1 is an elevation of the device, and Fig. 2 is a plan view thereof.

` In carrying out the invention there is provided an annular flexible band 5 wide enough to engage al1 the rings at one time, in order that' they may be compressed at one operation. The band is split or divided', and to one end is pivoted a lever 6 as indicated at 7. Adjacent to the other end of the band, on the outside thereof, are located lugs 8 which may be tongues struck up from the band. These lugs are for the purpose of 'holding a chain 9 to one end of which is connected a coiled spring 10, which latter, in turn, is connected to the lever 6 as indicated at 11.

The band 5 forms a fiexible gripping device and by swingingthe lever 6in a direction to draw the two ends of the band together, the band contracts around the piston ring or rings and compresses the same to facilitate insertion thereof, with the piston, into the cylinder. The band is placed to encircle the piston ring or rings, and it is then contracted until the rings com'e flush' with the surface of the piston.

Specification of Letters Patent.

Application filed Apri1'17, 1914. Serial No. 832,521.

' Patentes .nay 14, 1914.

The ends of the band 5 overlap as shown in Fig. l sothat the diameter of the band may be increased to suit the diameter of the piston rings, and the chain 9 is adjustablyfconnected Vto the lugsY 8. It will therefore be evident that the device is adapted for different siz'es of piston rings.

The lever 6 may be locked after the band 5 is contracted by swinging it over Vfar enough to throw 'the point 11, Where the spring 10 is attached to the lever, inside the pivot 7 of the latter.

If the rings are pinned to the piston, they can be placed with the pins properly seating in' the recesses, and all the rings can be positively clamped in their respective positions.

The spring` connection 10 between the chain 9 andthe lever 6 is provided to adapt the device for piston rings of diferent diameters. "Without the spring connection the chain adjustment might not draw t-he piston rings in sufficiently on one link, the next being so short as not tor allow the lever to lock. The spring also guards against an excess compression which would prevent the device from slipping freely on the piston when the latter is inserted into the cylinder.

We claim: v 15A device of the character described comprising a split flexible band, a lever pivoted to one end of the band, a chain anchored to the other end of the band, .and a resilient connect-ion between the chain and the lever; 2.l A device of the character described comprising a split iexible band the ends ofv .which overlap a lever pivoted to one end of' the band, a chain anchored to the other end of the band, and a resilient connection between t-lie chain and the lever.

In testimony whereof we alix our signatures in presence of two witnesses.

HOYVARD J. ,VAITON. CECIL M. NERBER. Witnesses:

Ro'r. A. Kann, HELENJ. DARRAH. 

